General architecture of a sensor acquisition system.

General architecture of a sensor acquisition system.

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Advancements in the field of flexible electronics have enabled many novel applications such as wearables, flexible large-area displays, and textile-based sensor systems. A widely used semiconductor material for flexible electronics is amorphous indium gallium zinc oxide (a-IGZO). When compared to other semiconductors suitable for flexible technolog...

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... typical implementation of a sensor acquisition system is shown in Fig. 2. The full acquisition chain comprises a sensor or electrode, an analog front-end (AFE), an analog to digital converter (ADC), a digital signal processing and transmission block, and a reader. The external analog quantity is picked by an electrode, or converted to the electric domain by a sensor. The sensor or electrode output is ...
Context 2
... next block in the signal acquisition chain (Fig. 2) after the amplifier is the data converter. It is required to convert the analog signal at amplifier's output to a digital (multi-bit discrete time) or binary (two-level pulse-width modulated) representation, which ensure robustness against interferers during transmission. As discussed in Section IV, in the former case one typically ...

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This special Section of the IEEE Open Journal of Circuits and Systems (OJCAS) is dedicated to the recent developments in circuits and systems for flexible electronics.